What does the subwoofer setting do?
Christopher Pierce
Published Apr 05, 2026
What does the subwoofer setting do?
A subwoofer is like a low-frequency driver for your main speakers—just one that is separated on its own. Set the crossover at a frequency where your main speakers can comfortably handle the audio above the crossover point. The subwoofer takes care of everything below that point. THX recommends 80Hz for most systems.
What should I set my subwoofer frequency to?
Tips for Setting the Proper Crossover Frequency of a Subwoofer
- On-wall or Tiny ‘satellite’ speakers: 150-200 Hz.
- Small center, surround, bookshelf: 100-120 Hz.
- Mid-size center, surround, bookshelf: 80-100 Hz.
- Large center, surround and bookshelf: 60-80 Hz.
- Very large center, surround, bookshelf: 40-60 Hz.
What should my LPF be set at?
As a general rule, the Low-Pass Filter should be set at a value approximately equal to (or below) 70% of your main speaker’s lowest frequency response.
How do I adjust my subwoofer settings?
Here are the important steps:
- First, set the crossover. This is the frequency at which your subwoofer starts playing bass notes.
- Next, adjust the gain (or volume).
- If you have a phase switch, switch it between 0 and 180 degrees and see if you hear a difference.
Why does my subwoofer not work?
Check connections and speaker wires. Starting from the subwoofer, check all the wires and connection points running to amplifiers, receivers, or speakers. Check to make sure that cables are firmly connected and plugged into the correct spots. Check outlets, power cable, and fuse.
Can a subwoofer be set to ” Yes ” in a receiver?
Most people using size logic set all the speakers in the receiver to “small”, and subwoofer to “yes”. While logically this is correct, it is not correct settings in this setup. What happens is that all bass information is removed from every speaker, and redirected to the line-level sub out jack on the back of your receiver.
How to configure receiver for passive subwoofer?
Configuring your receiver for this type of system will vary on how the passive sub is connected to the receiver. Passive or powered subs that connect to the front left and right speaker lines should have the fronts set to “large”, center and surrounds to “small”, and the sub set to “no”.
How do I connect this Active Subwoofer to my AV receiver?
However, this isn’t the case. Do I get a cable with one RCA jack on one end, two on the other, and connect the single end to the Pre Out Subwoofer port on the AV receiver and the duel end on the white and red (left side) Line Level? Connect the LFE output from the AVR into the subwoofer’s LEFT line level input.
Can a Bose subwoofer hook up to a receiver?
This method of subwoofer hook-up is very common for those that use Bose speaker systems, or anyone with a passive subwoofer. The receiver’s “yes” or “no” setting for the subwoofer only applies if you own a powered subwoofer connected to the receiver using a line level RCA style cord.
What do you need to connect a subwoofer to a receiver?
For power, you just need a nearby outlet. We highly recommend plugging your sub into a power protection device to guard against surges. For the signal, use a subwoofer cable to connect your receiver’s subwoofer output to the LFE (low frequency effect) input on the sub.
What causes a subwoofer to set a different distance?
So a 5 millisecond delay will cause your receiver to set the distance setting about 5 feet more than the physical distances involved. It may seem counter intuitive at a causal glance but the larger the distance setting, the LESS of a delay the subwoofer signal gets.
What’s the best way to set up an AV receiver?
Set the tip of the microphone at the point between where your ears would be if you were sitting in the center seat. Aim it up towards your ceiling. Play the test tones through each speaker one at a time, and set the level of each speaker so that it reads approximately 75db on the meter.
Is there a formula for setting a subwoofer?
Unfortunately, there’s no exact formula to set your subwoofer, and you’ll have to do most of it by ear. As a general rule, you want your large, small, and main speakers to overlap. However, you can’t just go at the back of your sub to configure because it needs to have the right amount of overlap.